I saw a video on YouTube of a guy who replaced his 12 lead acid accessory battery for his Fiat 500e electric vehicle and he's not had any issues for at least 2 years. I would like to do this too with my 2016 Kia Soul EV+. Does anyone have any experience with this and if so, what battery did they use? The guy in the video used the ReLion RB20 (20ah LiFEPO4) lithium ion battery.
Here's the battery: https://www.ecodirect.com/RELiON-RB20-1 ... J0QAvD_BwE
And here's the YouTube video: https://youtu.be/X_0lFn9YFNg
Is there anything I need to watch out for before doing this? These batteries are supposed to last several times longer than lead acid batteries and have several other advantages too. Any thoughts?